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Castlemap
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Sydney Property Map (Newcastle To Wollongong)

Map tip: Turn of overlayers for better clarity (when zoomed out). Use the "clicked line string" function to see dimensions of lines and area of polygons.
Zoom level*: , Map centre*: * dynamic input (changes). Advanced options (toggle)
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Overlayers
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Copy SVG code box (submit to generate, outputs 1 pixel = 1mm and ignores zoom level).

About The Map Layers

Castlemap base layer is a hybrid of NSW Govt. roads/waterways/rail data (reliable data) and Open Street Map greenspace, cycleways, paths, etc (volunteer maintained). Granny layer is 650,000* granny flats that could be built in Sydney. I measured 3m from the rear boundary and 1m from the side and plotted a floor plan from my API at HouseStrategy.net. * out of 2 million lot boundaries from Newcastle to Wollongong. Existing Building layer is from Overture Maps where I have upgraded the data to be aligned with lot boundaries (slight rotation of most polygons). Lots layer is from NSW Govt. (land parcels/boundaries).